Ethylene at 67°c, 10 bar enters a compressor operating at steady state and is compressed isothermally without internal irreversibilities to 100 bar. kinetic and potential energy changes are negligible. evaluate in kj per kg of ethylene flowing through the compressor(a) the work required.(b) the heat transfer.

Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.